Seasoning of timber is done
To make it water proof
To paint its surface
To increase its temperature
To remove water
Correct Answer :
D. To remove water
Related Questions
Specific gravity for most of the building stones lies between
1.5 to 2.0
2.0 to 2.5
2.5 to 3.0
3.0 to 3.5
The term frog means
An apparatus to lift the stone
A depression on a face of brick
Vertical joint in a brick work
Soaking brick in water
For melting one tonne of cast iron
700 m3 air is required
20 kg limestone is required
One quintal coke is required
All the above
Seasoning of timber is done
To make it water proof
To paint its surface
To increase its temperature
To remove water
Iron ore may contain
Carbon
Silicon
Phosphorus and manganese
All the above
In the method of condensation polymerization,
Low-molecular substances are removed from the high molecular substance
The reaction proceeds with an evolution of ammonia
The reaction proceeds with an evolution of hydrogen chloride
All of the above
The fire clay contains pure
Lime
Oxide of iron
Hydrated aluminium silicate
Magnesium
Varnish is a transparent or semi-transparent solution of resinous substances in
Alcohol
Linseed
Turpentine
All the above
The wedging is adopted for quarrying costly stratified rock such as
Laterite
Marble
Limestone
All the above
Plastic
Is an organic substance
Consists of natural or synthetic binders
Finished products are rigid and stable at normal temperature
All the above
Inner part of a timber log surrounding the pitch, is called
Sapwood
Cambium layer
Heart wood
None to these
Soundness test of cement determines
Quality of free lime
Ultimate strength
Durability
Initial setting
The property by virtue of which lime sets under water, is known as
Slacking
Setting
Hydraulicity
Calcining
The slump recommended for mass concrete is about
25 mm to 50 mm
50 mm to 100 mm
100 mm to 125 mm
125 mm to 150 mm
Lime stones are generally known as
Aqueous rocks
Sedimentary rocks
Stratified rocks
All the above
The rocks formed by gradual deposition, are called
Sedimentary rocks
Igneous rocks
Metamorphic rocks
None of these
If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called
Bessemer pig
Grey or foundry pig
White or forge pig
Mottled pig
The plywood
Has good strength along the panel only
Can be spilt in the plane of the panel
Has greater impact resistance to blows than ordinary wood
Cannot be bent more easily than ordinary wood of same thickness
In paints, the pigment is responsible for
Durability
Colour
Smoothness
Glassy face
Laterite is a/an
Volcanic rock
Argillaceous rock
Calcareous rock
Siliceous rock
A piece of timber whose thickness and width are respectively 5 cm and 10 cm is called
Slate
Plank
Board
Strip
The pressure acting on the stones in stone masonry construction should be
Along the direction of bedding planes
At 45° to the direction of bedding planes
At 60° to the direction of bedding planes
Perpendicular to the direction of bedding planes
Sewer pipes are made of
Earthen ware
Stone ware
Refractory clay
All the above
When a brick is immersed in water for 24 hours and then dried, if
No grey or white deposits appear on the surface, the brick is free from soluble salts
10 percent surface is covered with grey or white deposits, the brick has slight efflorescence
50 percent surface is covered with grey or white deposits, the brick has serious efflorescence
All the above
Pick up the correct statement from the following:
Quick lime is obtained by burning pure lime stone
Hydraulic lime is obtained by burning lime stone containing clay 5% to 30%
Poor lime is obtained by burning lime stone containing impurities more than 5%
All the above
Lime mortar is generally made with
Quick lime
Fat lime
Hydraulic lime
Plain lime
For lime concrete,
Slump is 50 to 75 mm
Flexural strength at 90 days is 0.2 N/mm2
Compressive strength at 90 days is 1.5 N/mm2
All the above
The coefficient of hardness of stones used in road work should be greater than
10
12
15
17
Assertion A : Normally turpentine oil is recommended as thinner for indoor painting. Reason R : Turpentine oil is costlier than other thinners. Select your answer according to the coding system given below:
Both A and R is true and R is the correct explanation of A
Both A and R is true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
Pick up the correct statement from the following:
The average crushing strength of hand moulded bricks is 6000 t/m2
The average tensile strength of hand moulded brick is 200 t/m2
The average shearing strength of hand moulded brick is 600 t/m2
All the above